Resilient User Experiences

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Presented at USI 2013 in Paris, France. …

Presented at USI 2013 in Paris, France.

Like what you've read? We're frequently hiring for a variety of engineering roles at Etsy. If you're interested, drop me a line or send me your resume: mike@etsy.com.

http://www.etsy.com/careers

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  • 1. Resilient User ExperiencesMike BrittainENGINEERING DIRECTOR, ETSY@mikebrittain
  • 2. Interfaces and user experiencesthat adapt to technical andarchitectural failure.
  • 3. Consider the followingtwo situations...
  • 4. http://www.flickr.com/photos/caffeina/2144044776/
  • 5. http://www.flickr.com/photos/17793901@N00/106331831/
  • 6. /*** Creates a database connection.*/public function __construct($host, $user, $pass, $db) {parent::__construct($host, $user, $pass, $db);if (mysqli_connect_error()) {throw new DBConnection_Exception(sprintf("Error: %s, %s",mysqli_connect_errno(),mysqli_connect_error()));}}
  • 7. try {$conn = new DBConnection(viewsdb.host, db_read_user,ssssshh!, views_db);} catch (DBConnection_Exception $e) {// TODO: Someone should figure out what to do if// we cant connect to the views db.throw $e;}
  • 8. NavigationLogoCute Picture“Something’s wrong,try again...”
  • 9. Critical path
  • 10. Every back-end service is anopportunity for failure.
  • 11. 12 345 610894111312147
  • 12. Are you showing yourvisitors to the door?
  • 13. Adverts SLA: 400 ms
  • 14. Non-blocking Ajax
  • 15. Google DocsGoogle Calendar
  • 16. GMail
  • 17. “Oops, we aren’t able to accessclick metrics right now, do notworry — your data is safe.”
  • 18. Product design doesn’t stopat 100% availability.
  • 19. OpsDev
  • 20. ProductOpsDev
  • 21. 12 345 610894111312147
  • 22. Operability reviews andpost-mortems
  • 23. Operational MindsetOpsDev Product
  • 24. Business PrioritiesOperational MindsetOpsDev Product
  • 25. page views for error template
  • 26. This is hard
  • 27. ... but the benefits are great.
  • 28. Merci!These slides will be available atmikebrittain.com/talksSay “Hello!”mike@etsy.com@ mikebrittainResilient User Experiences